/* -*- c++ -*- */
/*
 * Copyright 2014 <+YOU OR YOUR COMPANY+>.
 *
 * This is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3, or (at your option)
 * any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this software; see the file COPYING.  If not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street,
 * Boston, MA 02110-1301, USA.
 */

#ifndef INCLUDED_HOWTO_DELAY_COLA_FFF_IMPL_H
#define INCLUDED_HOWTO_DELAY_COLA_FFF_IMPL_H

#include <howto/delay_cola_fff.h>
#include <queue>



class Sample{
    public:
        float value; //Sample value.
        float next_value; //Next sample value.

        float current_delay; //Current delay between this sample and the next.
        float delay; //Delay between this sample and the next.

        Sample(float value,float next_delay,float delay);
};



namespace gr {
  namespace howto {
    class delay_cola_fff_impl : public delay_cola_fff
    {
     private:
      // Nothing to declare in this block.

     public:

      delay_cola_fff_impl();
      ~delay_cola_fff_impl();
      std::queue<Sample*> q; //Queue with the samples
      bool inicio; //If it is the first sample = true
      int sample_rate;
      float delay;


      // Where all the action really happens
      void forecast (int noutput_items, gr_vector_int &ninput_items_required);

      int general_work(int noutput_items,
		       gr_vector_int &ninput_items,
		       gr_vector_const_void_star &input_items,
		       gr_vector_void_star &output_items);
    };
  } // namespace howto
} // namespace gr







#endif /* INCLUDED_HOWTO_DELAY_COLA_FFF_IMPL_H */